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| Number | Title | Issue Date |
| 4178262 | Spotting-agent composition A spotting-agent composition for use in laundering garments is provided which consists essentially of a solution of (1) about 10 weight percent or more of a nonionic surfactant produced by reacting a mixture of fatty alcohols containing 10 to 18 carbon at... | 12/11/1979 |
| 4177205 | Process for the preparation of highly stable liquid carbodiimide-containing polyisocyanate compositions Highly stable liquid 4,4'-diphenylmethane diisocyanate (MDI) containing MDI-carbodiimide adducts are prepared by (a) heating MDI at a temperature of from 60° C. to 120° C. for a period of from one hour to ten hours in the presence of tris(chloromethyl)p... | 12/04/1979 |
| 4176218 | High resilience flexible foamed polyurethanes, foamable mixtures and process therefor A flexible, highly resilient, cold-cure, closed-mold polyurethane foam can be produced by reacting a foamable mixture comprising an organic polyisocyanate, water and a polyol. The foams of the invention are preferably prepared from a mixture of a hydroxyl... | 11/27/1979 |
| 4175023 | Combined cathode and diaphragm unit for electrolytic cells An especially efficient and durable electrolytic cell is provided by utilizing a combined cathode and diaphragm unit wherein the cathode is made by spray coating a ferrous metal substrate with a powder metal having lower hydrogen overvoltage than said sub... | 11/20/1979 |
| 4175025 | Sealed membrane filter press electrolytic cells An electrolysis cell assembly of the filter press type having plastic frames and a membrane wherein the membrane is formed to fit between adjacent frames with one or more recesses provided on one or both of the adjacent frames together with sealing gasket... | 11/20/1979 |
| 4174427 | Method of making expandable polystyrene beads Expandable-polystyrene beads suitable for use in making impervious containers are made from a recipe including styrene, free-radical initiator and polyvinyl pyrrolidone, and this practice includes a step of washing the beads in a warm aqueous solution to ... | 11/13/1979 |
| 4174289 | Liquid detergent-bleach concentrates having high alkalinity There are disclosed liquid detergent-bleach concentrates of high alkalinity which are clear solutions having excellent long term stability at elevated temperatures and at low temperatures. The concentrate compositions consist essentially of an alkali meta... | 11/13/1979 |
| 4166164 | Process for the preparation of carbodiimide-isocyanurate foams Rigid foams characterized by carbodiimide and isocyanurate linkages are prepared by catalytically condensing an organic polyisocyanate in the presence of (a) a carbodiimide-promoting compound and (b) certain C1 -C8 alkali metal carbo... | 08/28/1979 |
| 4165405 | Fiber lubricants based upon fatty esters of heteric polyoxyalkylated alcohols Lubricants, or processing aids, for synthetic fibers, particularly polyester and nylon fibers and most particularly for polyester fibers, are disclosed comprising a capped heteric polyoxyalkylene monoester having the formula: ##STR1## in which R... | 08/21/1979 |
| 4165414 | Urethane-modified isocyanurate foams having improved insulating and flame retardant properties The incorporation of chloro-alkanol moieties into a urethane-modified isocyanurate foam has been found to improve the insulating properties of the foam as well as improve the flame-retardant properties thereof.... | 08/21/1979 |
| 4163727 | Acidizing-gel composition The output of an oil well is improved by supplying thereto an acidizing-gel composition which consists essentially of, for example, about 15 weight percent of hydrochloric acid, about 20 weight percent of a suitable nonionic gel-forming surfactant contain... | 08/07/1979 |
| 4163086 | Novel oxyalkylated polyol prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof Liquid oxyalkylated polyol prepolymers are prepared by oxyalkylating a prepolymer prepared from a hydroxy aromatic compound, an aldehyde and furfuryl alcohol with an alkylene oxide containing about 2-4 carbon atoms. The oxyalkylated polyol prepolymers hav... | 07/31/1979 |
| 4161468 | Process for the preparation of graft polymer dispersions employing liquid free radical catalysts Graft polymer dispersions are prepared by the in situ polymerization in the presence of a free radical catalyst of an ethylenically unsaturated monomer or mixture of monomers in a liquid polyol employing as the free radical catalyst a liquid unsymmetrical... | 07/17/1979 |
| 4158083 | Fibrous article sized with a branched water-dispersible polyester A polyester size composition for synthetic fibers useful in protecting the fibers from abrasion during the weaving process or to improve the adhesion to the fibers of conventional size compositions and especially useful with polyester fibers such as those... | 06/12/1979 |
| 4156073 | Branched water-dispersible polyester A polyester size composition for synthetic fibers useful in protecting the fibers from abrasion during the weaving process or to improve the adhesion to the fibers of conventional size compositions and especially useful with polyester fibers such as those... | 05/22/1979 |
| 4156064 | Process for the manufacture of polyurethane adhesives Process for the manufacture of polyurethane adhesives with uniform molecular weights which are accurately adjustable and reproducible consisting of diisocyanates, polyols, chain extenders if required, catalysts and additives, all of which are soluble in p... | 05/22/1979 |
| 4154725 | Method of recovering tall oil from acidulation of raw tall oil soap A free-radical prepolymer, disclosed in U.S. Pat. No. 3,873,417 as being a dispersant, when added at 10 to 500 parts per million to a reaction mixture in which raw tall oil soap is acidulated to obtain tall oil, is found to act as a separating agent and i... | 05/15/1979 |
| 4154666 | Method of making fiber diaphragms Diaphragms for electrolytic cells are prepared by depositing onto a cathode screen, discrete thermoplastic fibers. The fibers are highly branched, and when deposited, form an entanglement or network thereof, which does not require bonding or cementing.... | 05/15/1979 |
| 4153571 | Heat dependent alkali gel cleaning compositions and process for cleaning greasy surfaces Alkaline cleaning compositions are prepared by combining water, alkali metal hydroxide and certain surfactants which composition forms a gel when applied to a hot surface and a process for the easy removal of greasy soil from such surfaces.... | 05/08/1979 |
| 4151334 | Process for the preparation of carbodiimide-isocyanurate foams employing quaternary boron salts as catalysts Rigid foams characterized by carbodiimide and isocyanurate linkages are prepared by catalytically condensing an organic polyisocyanate in the presence of certain quaternary boron salts.... | 04/24/1979 |
| 4151099 | Water-based hydraulic fluid and metalworking lubricant The present invention relates to the use, as a hydraulic fluid or metalworking lubricant, of compositions having water as a base and yet possessing superior lubricating and wear preventing characteristics. The fluids of the invention comprise (1) a water-... | 04/24/1979 |
| 4150207 | Alumina trihydrate as flame retardant agent for urethane-modified carbodiimide-isocyanurate foams Urethane-modified carbodiimide-isocyanurate foams are prepared by catalytically condensing (a) an organic polyisocyanate with a polyol or (b) a quasi-prepolymer in the presence of a blowing agent and from 20 parts to 100 parts by weight of alumina trihydr... | 04/17/1979 |
| 4149955 | Feeding of brine to chlor-alkali cells There is used a structure modified so that the brine-introduction tube is mounted within a larger-diameter tube sealingly mounted in the brine-introduction opening in the side of the cell top, with an orifice member preferably being mounted within an end ... | 04/17/1979 |
| 4149987 | Process for preparing halogenated aromatic hydroxy ethers An oxyalkylated, halogenated product useful in making polyurethane foams is prepared by reacting an epoxide compound with a halogenated aromatic hydroxyl-containing compound (phenol) which is either a monohydroxy or polyhydroxy compound. Said aromatic hyd... | 04/17/1979 |
| 4148980 | Novel carboxylate catalysts for the preparation of foams characterized by polyisocyanurate, polyurethane and poly (urethane-isocyanurate) linkages Reaction products of certain tertiary amines, alkylene oxides and carboxylic acids have been found to be outstanding catalysts for the preparation of polyisocyanurates, polyisocyanurate foams, polyurethane foams and poly(urethane-isocyanurate) foams. Typi... | 04/10/1979 |
| 4147716 | Preparation of N-substituted carbamates A method of preparing an N-substituted carbamate comprising reacting by heating in sulfolane at a temperature ranging from about 65° C. to about 100° C. (1) an alkali metal cyanate, (2) at least one sulfolane-soluble organic halide of the formula RX whe... | 04/03/1979 |
| 4145469 | Water-insoluble treated textile and processes therefor There are disclosed processes for preparing a textile treated with a water-insoluble polyester wherein a linear or branched chain water-soluble sulfonate or phosphate group containing polyester is coated or impregnated onto a textile substrate in combinat... | 03/20/1979 |
| 4144395 | Process for the preparation of polyether-ester polyols Polyether-ester polyols are prepared in the presence of from 0.005 percent to 0.01 percent by weight (50-100 ppm) of a trialkylamine. The resulting polyols have improved color and are obtained in markedly reduced reaction times.... | 03/13/1979 |
| 4142950 | Apparatus and process for electrolysis using a cation-permselective membrane and turbulence inducing means High current efficiency can be obtained in an electrolytic cell by inducing turbulence in the catholyte preferably by utilizing a gas-directing cathode and cation-permselective membrane combination. There is disclosed a process for electrolysis, particula... | 03/06/1979 |
| 4138314 | Method of forming diaphragms from discrete thermoplastic fibers requiring no bonding or cementing Diaphragms for electrolytic cells are prepared by depositing onto a cathode screen, discrete thermoplastic fibers. The fibers are highly branched, and which, when deposited form an entanglement or network thereof, which does not require bonding or cementi... | 02/06/1979 |
| 4138296 | Method for removing nitrogen trichloride from chlorine gas In a process for making chlorine electrolytically in which a build-up of nitrogen trichloride occurs in the bottoms of cooling apparatus, a method and apparatus is provided wherein the nitrogen trichloride is dissolved in an organic solvent such as carbon... | 02/06/1979 |
| 4138346 | Water-based hydraulic fluid The present invention relates to the use, as hydraulic fluids or metalworking lubricants, of compositions having water as a base and improved extreme pressure lubricating and wear-preventing characteristics. The hydraulic fluids of the invention are nonfl... | 02/06/1979 |
| 4137396 | Filtration process for purifying polyols An improvement in the process for the removal of residual catalyst from polyether polyols is achieved by the use of a solvent wash and recovery system.... | 01/30/1979 |
| 4137398 | Process for the removal of catalyst from polyether polyol An improvement in the process of alkaline catalyst removal from crude polyoxyalkylene ether polyols is achieved by treating a mixture of crude polyol, adsorbent, and water with magnesium carbonate and carbon dioxide just prior to filtration.... | 01/30/1979 |
| 4133780 | Polyurethane foams prepared from condensation products of amines, epihalohydrins and alkylene oxides Oxyalkylated condensation products prepared from aliphatic and aromatic amines, epihalohydrin and alkylene oxides are used in the preparation of polyurethane foams.... | 01/09/1979 |
| 4129718 | Process for the removal of catalyst from polyether polyol An improvement in the process of alkaline catalyst removal from crude polyoxyalkylene ether polyols is achieved by treating a mixture of crude polyol, adsorbent, and water with carbon dioxide just prior to filtration.... | 12/12/1978 |
| 4129693 | Urethane-modified isocyanurate foams having enhanced physical properties Urethane-modified isocyanurate foams are prepared by catalytically condensing an organic polyisocyanate in the presence of a polyol and from 5% to 50% by weight based on the weight of the organic polyisocyanurate of an ammonium phosphate. The resulting fo... | 12/12/1978 |
| 4127490 | Fiber finish compositions A textile treating composition, consisting of a mixture of a major amount of lubricant and a minor amount of a stabilizer of said lubricant and a process for employment thereof.... | 11/28/1978 |
| 4127457 | Method of reducing chlorate formation in a chlor-alkali electrolytic cell In a chlor-alkali electrolytic cell in which an aqueous alkali metal chloride solution is electrolyzed, said electrolytic cell having an anode compartment containing an anode and a cathode compartment containing a cathode separated by a substantially flui... | 11/28/1978 |
| 4126536 | Diaphragms for chlor-alkali cells Synthetic-fiber diaphragms are further improved by incorporating in the diaphragm an effective proportion of a suitable inorganic material such as TiO2, BaSO4 or K2 Ti8 O17, which is more hydrophilic ... | 11/21/1978 |
